Medium6.5Red Hat & Ubuntu Linux
Denial of Service via invalid JSON output
CVE-2026-34481 Published Apr 10, 2026
CVE-2026-34481
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
Denial of Service via invalid JSON output. Red Hat rates this moderate (CVSS 6.5). Weakness: CWE-241. Affected package(s): log4j-layout-template-json, offline-knowledge-portal/rhokp-rhel9:1779996999. Resolved in Red Hat advisory RHSA-2026:22619 — update the affected packages (`sudo dnf update`).
Affected versions
- log4j-layout-template-json
- offline-knowledge-portal/rhokp-rhel9:1779996999
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
Fixed versions
- RHSA-2026:22619
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
Mitigation checklist
Recommended fix / mitigation
- Update the affected package(s) to the fixed version shipped in RHSA-2026:22619 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
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